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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 7 — Apr. 1, 2009
  • pp: 1033–1035

Nanograined highly transparent yttria ceramics

K. Serivalsatit, B. Yazgan Kokuoz, B. Kokuoz, and J. Ballato  »View Author Affiliations

Optics Letters, Vol. 34, Issue 7, pp. 1033-1035 (2009)

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The field of transparent ceramics is enjoying a renaissance, as refractory oxides are being developed as alternatives to single crystals in high-performance laser systems. However, a significant challenge remains regarding the reduction of the grain size to sufficiently subwavelength dimensions in order to achieve the same degree of optical transparency as the single-crystal analog. Here we report transparent yttria ( Y 2 O 3 ) ceramics that were synthesized by a pressure-assisted, two-step, low-temperature sintering process with an average grain size of 300 nm . These nanograined ceramics exhibit equivalent transmission to single crystalline yttria for wavelengths greater than about 1200 nm . The single-crystal-like transmittance of the nanograined yttria ceramics in the visible and IR region is an important advancement for the use of these materials in more-extreme environments, including high-energy laser systems where reduction of scattering is paramount.

© 2009 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(140.3390) Lasers and laser optics : Laser materials processing
(160.3380) Materials : Laser materials
(160.4760) Materials : Optical properties
(160.5690) Materials : Rare-earth-doped materials

ToC Category:
Lasers and Laser Optics

Original Manuscript: November 25, 2008
Revised Manuscript: February 16, 2009
Manuscript Accepted: February 22, 2009
Published: March 25, 2009

K. Serivalsatit, B. Yazgan Kokuoz, B. Kokuoz, and J. Ballato, "Nanograined highly transparent yttria ceramics," Opt. Lett. 34, 1033-1035 (2009)

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